The instrument consists of an argon-filled well type ionization chamber
a MOSFET electrometer and a Z80 microcomputer. It can measure the activity of tens of common nuclides such as
226
Ra
60
Co
137
Cs
32
P
99m
Tc
113m
In
125
I and
131
I. It can be used as a calibrated instrument when the production and applications of radioisotopes are involved. The result of measurement are displayed in 4-digits. The instrument can storage 91 assayed data and print out the data automatically.
The operating range is 3.7 Bq to 3.7 GBq for
226
Ra. The functions of this instrument include correction for nuclear decay
background subtraction and automatical detection of trouble.